Washington -LRB- CNN -RRB- -- U.S. troops were among the casualties in the shooting rampage at the Colorado movie theater , including a sailor who was listed as unaccounted for , the Pentagon said Friday .

The Defense Department released a statement that said one sailor was injured and another one , known to have been at the theater , was unaccounted for . Two airmen were wounded in the incident , it said .

Buckley AFB in Aurora , Colorado , is the closest military base to the scene of the shootings . Spokesman Master Sgt. Jill Lavoie said some of the wounded were from Buckley .

About 10,000 troops -- including members of the Air Force , Army and Marine Corps -- are stationed at Buckley . Soon after the shooting , the base initiated a head count , Lavoie said .

One of the units on base is the 743rd Military Intelligence Battalion .

A post Friday on its Facebook page said that the Traumatic Stress Response Team -LRB- Mental Health Support -RRB- and Emergency Family Assistance Control Center -LRB- EFACC -RRB- had been activated at the base chapel . `` If you or family members need assistance or counseling following the aftermath of the Aurora Movie Theater shooting , you can meet with the teams standing by to help you , '' the posting says .

The DoD statement also said that the suspect , James Holmes , is not a past or current member of any branch or component of the U.S. Armed Forces .

CNN 's Barbara Starr contributed to this report

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NEW : 1 sailor is unaccounted for , the Pentagon says

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Another sailor and 2 airmen were wounded , the Pentagon says

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Buckley AFB in Aurora , Colorado , is the closest base to the shooting scene

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Buckley 's traumatic stress response team has been activated